Sunex Tools SX231P User Manual

Operating Instructions • Warning Information • Parts Break down

SX231P-2

1/2" Premium imPact

Wrench W/ 2"anvil

WARNING

READ THIS MANUAL BEFORE
OPERATING TOOL.

ALWAYS WEAR EYE PROTECTION
WHEN OPERATING OR PERFORMING
MAINTENANCE ON THIS TOOL.

ALWAYS WEAR HEARING
PROTECTION WHEN OPERATING
THIS TOOL.

AVOID PROLONGED EXPOSURE
TO VIBRATION

SPECIFICATIONS

Square Drive Size ......................................... 1/2"

Max. Torque ...................500 Ft. Lbs. (677.9 Nm)

Free Speed ........................................ 7,000 RPM

Length ........................................... 7.4" (188 mm)

Weight ........................................6.2 Lbs. (2.8 kg)

Avg. Air Cons. .....................7.0 cfm (198.2 l/min)

Air Inlet .................................................. 1/4" NPT

Min. Hose Size .......................... 3/8" I.D. (10mm)

Sound Pressure Level ........................... 107 dBA

© Copyright 2013, Sunex Tools

SX231P-2: Parts Breakdown & Operating Manual 08/20/13

®

To reduce the risk of injury, anyone using, repairing, maintaining, or changing accessories on this tool must

WARNING

read and understand these instructions before performing any of these tasks.

Always inspect, operate, and maintain this tool in accordance
with American National Standards Institute Safety Code of
Portable Air Tools (ANSI B186.1) and any other applicable safety
codes and regulations.

These tools are rated at 90 psi / 6.2 bar max air pressure for
safety, top performance, and maximum durability of parts; do
not exceed this pressure while the tool is running.

Always shut off air supply, drain hose of air pressure and
disconnect tool from air supply when not in use, before
changing accessories, or when making repairs.

Never direct air at yourself or anyone else.
Always wear impact-resistant eye and face protection when

operating or performing maintenance on this tool.
High sound levels can cause permanent hearing loss. Always

use hearing protection when using this tool as recommended
by your employer or OSHA regulation.

Keep away from rotating end of tool. Do not wear jewelry or loose
clothing. Secure long hair. Scalping can occur if hair is not kept
away from tool and accessories. Choking can occur if neckwear
is not kept away from tool and accessories.

Do not use quick disconnect couplings at tool. See operating
instructions for proper set up.

Whipping hoses can cause serious injury. Always carefully
check for damaged or loose hoses and fittings before operating
this tool.

Avoid direct contact with accessories during and after use.
Gloves should be worn to reduce the risk of cuts or burns.

Use only sockets and accessories rated for use with Impact
Wrenches which are in good condition. Sockets in poor condition
or hand sockets and accessories can shatter and cause injury.

Never run the tool off of the work. The tool may run too fast and
cause the accessory to be thrown off of the tool.

Serious injury can result from over-torqued or under-torqued fas­teners. Assemblies requiring a specific torque must be checked
using a torque meter.

"Click" torque wrenches do not check for potentially dangerous
over-torque conditions.

Slipping, tripping, and/or falling while operating air tools can
be a major cause of serious injury or death. Be aware of your
surroundings and any excess hose left on the walking or working
surface.

Pneumatic tools can cause vibration in use. Vibration, repetitive
motions or uncomfortable positions over extended periods of
time may be harmful to your hands and arms. Discontinue use
of tool if discomfort, tingling feeling or pain occurs. Consult a
physician before resuming use if any of these symptoms occur.

Do not stretch or overreach while using this tool.
If tool appears to malfunction, remove from service

immediately and arrange for repair.
Never use tool if there is any chance of coming into contact with

line electricity.

Use only Sunex certified spare parts for any repair made to tool.
Repairs should only be performed by properly trained persons.

Do not lock, tape or wire the tool valve in the "on/off" position.
Do not allow the exhaust air to come in contact with hot surfaces

or flames.
Avoid inhaling dust or handling debris from the work process,

which can be harmful to your health. Use dust extraction and wear
respiratory protective equipment when working with materials
which produce airborne particles.

Some dust created by power sanding, sawing, grinding, drilling and
other construction activities contains chemicals known to the State
of California to cause cancer and birth defects or other reproductive
harm. Some examples of these chemicals are:

- Lead from lead based paints

- Crystalline silica bricks and cement and other
masonry products

- Arsenic and chromium from chemically-treated lumber
Your risk from these exposures varies, depending on how often you

do this type of work. To reduce your exposure to these chemicals:
work in a well ventilated area, and work with approved safety
equipment, such as those dust masks that are specially designed
to filter out microscopic particles.

This product may contain one or more chemicals known to the
State of California to cause cancer and birth defects or other
reproductive harm. Wash hands thoroughly after handling.

Additional Safety Warnings

Do not modify this tool or its accessories.
Do not lubricate tools with flammable or volatile liquids such as

kerosene, diesel or jet fuel.
Do not force tool beyond its rated capacity.
Do not remove any labels. Replace damaged labels.
This tool is not recommended for use in explosive atmospheres or

underwater use.
Operators and maintenance personnel must be physically able to

handle the bulk, weight, and power of this tool.
This tool is for professional use only.

SAFETY INSTRUCTIONS - DO NOT DISCARD - GIVE TO USER

SX231P-2: Parts Breakdown & Operating Manual 2 08/20/13

Instruction Manual

This product is designed to tighten or loosen threaded fasteners. No other use is permitted.

Air Supply Requirements

Tool is designed to operate at 90 psi (6.2 bar) at free speed measured at the tool, of clean, dry air. Operating this tool at higher pressures will
drastically reduce the tool life and could cause injury.

The air inlet thread on this tool is a standard 1/4" NPT. Line pressure should be increased for any unusually long air hose run (over 25 feet).
Minimum hose diameter should be 3/8" I.D. and all fittings should have the same inside diameter. See diagram below for proper air supply setup.

Air Supply

Do Not Install

Quick Coupling

Here

Nipple

Whip Hose

Nipple

Filter

Hose

Regulator Oiler Quick Coupler Leader

Drain Daily

Lubrication

Lubricate the tool each day after use with quality SAE #10 air motor oil. Add the oil to the air inlet or into the hose at the nearest connection to the air
supply, then run the tool until all excess oil is expelled from the exhaust. Total oil quantity needed for this procedure is approximately 1/2 ounce.

Operation

This tool includes an adjustable power management system that allows the operator to adjust power in the clockwise direction (forward) and counter
clockwise direction (reverse).

To set tool up with full power output in forward direction and full power in the reverse direction; rotate the power dial until the notch on the dial aligns
with the number 5 setting on each side of the tool.

To set tool up with reduced power output in forward direction and full power in the reverse direction; push the reversing valve out in the clockwise
direction (forward) and adjust the dial to the desired number in the forward direction. You will see that when the reversing valve is switched back to
counter clockwise, the tool will have full power output.

To set tool up with full power output in forward direction and reduced power in the reverse direction; push the reversing valve out in the counter clock­wise direction (reverse) and adjust the dial to the desired number in the reverse direction. You will see that when the reversing valve is switched back
to clockwise, the tool will have full power output.

The Power management system is only for reference and does not act as a torque control tool. This tool includes a plunger style variable speed trigger
that further allows the operator to control output power in the clockwise direction.

This impact wrench is rated at 1/2" SAE bolt size. Rating must be down graded for spring U bolts, tie bolts, long cap screws, double depth nuts, badly
rusted conditions and spring fasteners as they absorb much of the impact power. When possible, clamp or wedge the bolt to prevent springback.

Soak rusted nuts in penetrating oil and break rust seal before removing with impact wrench. If nut does not start to move in three to five seconds use
a larger size impact wrench. Do not use impact wrench beyond rated capacity as this will drastically reduce tool life. The reversing valve is used to
change the rotation of the tool. When the valve is out, the tool is in a forward or right hand rotation. When the valve is pushed in, the rotation is reverse
or left hand.

NOTE: Actual torque on a fastener is directly related to joint hardness, tool speed, condition of socket and the time the tool is allowed to impact.
Use the simplest possible tool-to-socket hook up. Every connection absorbs energy and reduces power.

SX231P-2: Parts Breakdown & Operating Manual 3 08/20/13

SX231P-2

1/2" Premium

imPact

Wrench W/

2"anvil

REF. PART DESCRIPTION QTY.
NO. NO.

1 RS708A01S Housing Assembly
(includes #1, 2, 3, 5, 43) 1
2 RS708A02S Name Plate 1
3 RS708A03 Grease Fitting 1
4 RS708A04 O-Ring 2
5 RS708A05 Reverse Valve Sleeve 1
6 RS708A06 Detent Ball 1
7 RS708A07 Detent Spring 1
8 RS708A08 Reverse Valve 1
9 RS708A09 Trigger Pin 1
10 RS708A10 Valve Seat 1
11 RS708A11 Valve Stem 1
12 RS708A12 O-Ring 2
13 RS708A13 Air Inlet 1
14 RS708A14 Valve Spring 1
15 RS708A15 Throttle Valve Assembly
(includes #10, 11, 12, 14) 1
16 RS708A16 Trigger 1
17 RS708A17 Set Screw 1
18 RS708A18 Rear Gasket 1
19 RS708A19 Rear Bearing 1
20 RS708A20 Knob for Reverse Valve 1
21 RS708A21 Screw 1
22 RS708A22 Rear End Plate 1

REF. PART DESCRIPTION QTY.
NO. NO.

23 RS708A23 E-Ring 1
24 RS708A24 Rotor 1
25 RS708A25 Rotor Blade
(Pack of 6 Blades) 1 pack
26 RS708A26 Cylinder 1
27 RS708A27 Front End Plate 1
28 RS708A28 Front Bearing 1
29 RS708A29 Cylinder Dowel Pin 1
30 RS708A30 Motor Clamp Washer 2
31 RS708A31 Washer 1
32 RS708A32 Hammer Cage 1
33 RS708A33 Hammer 2
34 RS708A34 Hammer Pin 2
35 RS708A44 2" Anvil Assembly
(includes #12, 36) 1
36 RS708A36 Socket Retaining Ring 1
37 RS708A37 Anvil Bushing 1
38 RS708A38 Protect Ring 1
39 RS708A39 Front Gasket 1
40 RS708A40 Hammer Case Assembly
(includes #37) 1
41 RS708A41 Spring Washer 3
42 RS708A42 Cap Screw 3
43 RS708A43 Warning Label 1

SX231P-2: Parts Breakdown & Operating Manual 4 08/20/13

For a complete listing of Authorized Master Repair Centers, visit www. sunextools.com.

LIMITED WARRANTY...

SUNEX INTERNATIONAL, INC. WARRANTS TO ITS CUSTOMERS THAT THE COMPANY’S SUNEX TOOLS® BRANDED
PRODUCTS ARE FREE FROM DEFECTS IN WORKMANSHIP AND MATERIALS.

Sunex International, Inc. will repair or replace its Sunex Tools® branded products which fail to give satisfactory service due to defective workmanship
or materials, based upon the terms and conditions of the following described warranty plans attributed to that specific product. This product carries a
ONE-YEAR warranty. During this warranty period, Sunex Tools® will repair or replace at our option any part or unit which proves to be defective in material or
workmanship.

Other important warranty information...

This warranty does not cover damage to equipment or tools arising from alteration, abuse, misuse, damage and does not cover any repairs or replacement made
by anyone other than Sunex Tools® or its authorized warranty service centers. The foregoing obligation is Sunex Tools® sole liability under this or any implied
warranty and under no circumstances shall we be liable for any incidental or consequential damages.
Note: Some states do not allow the exclusion or limitation of incidental or consequential damages, so the above limitation or exclusion may not apply to you.
Return equipment or parts to Sunex Tools®, or an authorized warranty service center, transportation prepaid. Be certain to include your name and address,
evidence of the purchase date, and description of the suspected defect.
If you have any questions about warranty service, please write to Sunex Tools®. This warranty gives you specific legal rights and you may also have other rights
which vary from state to state. Repair kits and replacement parts are available for many of Sunex Tools® products regardless of whether or not the product is
still covered by a warranty plan.

SHIPPING ADDRESS: Sunex Tools • 315 Hawkins Rd. • Travelers Rest, SC 29690
MAILING ADDRESS: Sunex Tools • P.O. Box 1233 • Travelers Rest, SC 29690

SX231P-2: Parts Breakdown & Operating Manual 5 08/20/13